docs: def node_stats(self, nodes=None):
          """
          The cluster :ref:`nodes info <es-guide-reference-api-admin-cluster-nodes-stats>` API allows to retrieve one or more (or all) of
          the cluster nodes information.
          """
          parts = ["_cluster", "nodes", "stats"]
          if nodes:
              parts = ["_cluster", "nodes", ",".join(nodes), "stats"]
  
          path = make_path(*parts)
          return self.conn._send_request('GET', path)